Texas folks: Help build a database of businesses that won't let us carry

Someone started a website to compile a list of businesses who post the infamous Texas Penal Code 30.06 signs. For those that don't know, that's the sign that says a Concealed Handgun Licensee is not welcome here and would be in violation of the law to enter. They are not allowing us to legally protect ourselves in that store or restaurant or whatever. It also serves as a tip off to armed felons that regular citizens won't be armed in that business.